Give Satisfaction

I personally think we should leave them, with trigger warnings at the top of the prompt (and/or the fill)
Most triggers are obvious. If your prompt/fill contains dubcon elements, violence, rape, suicide... you know those are common triggers for a lot of people. It's easy to just write a warning before your prompt/fill.
For less obvious triggers, the prompt itself serves as a warning. For example if the prompt says "pissplay" and that makes you uncomfortable, then you know not to read the fill or comments.